/**
 * (C) Copyright IBM Corp. 2010, 2015
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package com.ibm.bi.dml.runtime.instructions.spark.functions;

import org.apache.spark.api.java.function.PairFunction;
import org.apache.spark.sql.Row;

import scala.Tuple2;

import com.ibm.bi.dml.runtime.matrix.data.MatrixBlock;
import com.ibm.bi.dml.runtime.matrix.data.MatrixIndexes;

public class GetMIMBFromRow implements PairFunction<Row, MatrixIndexes, MatrixBlock> {

	private static final long serialVersionUID = 2291741087248847581L;

	@Override	
	public Tuple2<MatrixIndexes, MatrixBlock> call(Row row) throws Exception {
//		try {
			MatrixIndexes indx = (MatrixIndexes) row.apply(0);
			MatrixBlock blk = (MatrixBlock) row.apply(1);
			return new Tuple2<MatrixIndexes, MatrixBlock>(indx, blk);
//		}
//		catch(Exception e) {
//			throw new Exception("Incorrect type of DataFrame passed to MLMatrix:" + e.getMessage());
//		}
	}

}
